A K Upadhyay and S Upadhyay Solutions for Chapter: Heron's Formula, Exercise 2: MULTIPLE CHOICE QUESTIONS

The sides of a triangle are $6 \mathrm{cm},8 \mathrm{cm} \mathrm{and} 10 \mathrm{cm}$ respectively. The length of its smallest altitude

The semi perimeter of an equilateral triangle is $60 \mathrm{cm}$. The area is

Half of perimeter of a triangle is $20 \mathrm{cm}$.The product of $(s-a),(s-b) \mathrm{and} (s-c)$ is $30 {\mathrm{cm}}^3$, where $s=a+b+c$. then area of triangle is equal to

In an equilateral triangle of side $\text{'}a\text{'}$, the length of altitude will be

The area of an equilateral triangle of side $2a \mathrm{cm}$ is

In Heron's formula $\text{'}2S\text{'}$ stand for

The difference between the semi-perimeter and the sides of a $△ ABC$ are $5 \mathrm{cm},7 \mathrm{cm} \mathrm{and} 8 \mathrm{cm}$ respectively. The area of the triangle is

The perimeter of an equilateral triangle is equal to the perimeter of a square. The diagonal to the square is $9\sqrt{2} \mathrm{cm}$. The area of equilateral triangle is